Mill-bush



UNITED. STATESLPATENT OFFICE.

EZEKIEL CASNER, OF PENN YAN, NEWT YORK.

MILL-BUSH.

Specification of Letters Patent No. 30,296, dated October 9, 1860.

To all whom it may concern:

Be it known that I, EznKlEL OASNER, of Penn Yan, in the county of Yates and State of New York, have invented a new and Impr'oved Mill-Bush; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a partv of this specification, in whichm Figure l is a perspective view of the whole. Fig. 2 is a birdseye view with the cover removed. Fig. 3 is a transverse section. Fig. 4 is a side view of the bush blocks.

The letters of reference refer to the same parts in each figure.

A, Figs. l, 2 and 3, is the trame or case of castI iron cubiform in shape outside; and pyramidical inside, or the sides are thicker at the top than at the bottom. The use of this form is to compress the bush-blocks E, E, E, E when they are raised upward in the case A. This case must be permanently fastened within the eye of the bed millstone.

B, is a cover for the case. lt is elevated in the center and has a hole through it for the spindle D; underneath this cover is a chamber which may be filled with some textile or fibrous substance as represented by G Fig. 3. The use of this is to keep dustor dirt from the bush-blocks and spindle.

E, in each figure represents the bushblocks, made of wood or other material. They are made in such manner that when put together' they will fill the inside of the case at the top or upper part thereof leaving space at the bottom of the case of about one-ifth the thickness of the blocks. At the inner corners of these bushblocks is a hole made to suit the spindle when the bushblocks are at their lowest position; this hole is contracted as it is worn by raising' the bushblocks as hereafter specified.

I, is a groove; H is a tongue made inclined as shown in Fig. 3. The use of the tongue and groove is to keep the bushblocks in proper position. The inclination of the same is to convey any lubricating substance to the spindle.

O, is a bottom that will lit the case whenv it is raised to its highest position. It has two projections at opposite sides that extend to the outside of the case through the aperture J.

F, and F, are bolts or setscrews each having for nuts that portion of the case from the aperture J, to the top. Each of these bolts has a collar that supports the bottom C, by these bolts being put through the projeo tions of the bottom C. The use of these bolts is to raise the bottom and with it the bushblocks thereon, thereby contracting the hole of the bushblocks about the spindle when necessary. By the bush blocks being raised into the smaller portion of the inside of the ease, this operation may be repeated until the top of the blocks come to the top of the case. Then new bush-blocks may be supplied in place of the old Ones.

To use my improvement, secure the case within the eye of the bedstone iu position so that the top of the cover will be on the plane of the top of the bedstone with the centers of each at the same point. The spindle being in place, put the bushblocks in their places and secure them by the bottom and the bolts as specified. Then lubricate the blocks and spindle, then place some textile or fibrous substance saturated with oil about the spindle upon the blocks, then put on the cover, and the bush and spindle are ready for operation. The bushblocks may be loosened or tightened by the screws F and F, and the same may be done while the spindle is in operation.

That I claim as new and desire to secure by Letters Patent is- The combination of the case A, bushblockN E, E, E, E, bottom plate O, and bolts F F when made and used substantially as speer fied.

EZEKIEL CASNER.

Vitnesses:

CHAS. G. JUDD, CHARLES KETCHUM. 

